The 2012 Workshop on Visual Analytics in Healthcare will provide an opportunity for participants to discuss visual analysis applications in the healthcare domain. The focus of this year's workshop will be on Open Health Data initiatives. In addition to sharing and discussing use cases, techniques, and applications in this area, participants will be able to meet with program officers involved in major open health data initiatives and learn about funding opportunities. The workshop will allow participants to showcase their ongoing work on visualization and data mining techniques and to learn more about emerging sources of open health data.